401 Unauthorized
4xx Client Error. The request lacks valid authentication credentials for the target resource.
4xx Client Error
What it means
The request lacks valid authentication credentials for the target resource.
Common causes
A missing, expired, or invalid authentication token or API key.
How to fix it
Log in again or refresh your authentication token, and confirm it's included in the request (typically in the Authorization header).
Frequently asked questions
What does HTTP 401 mean?
The request lacks valid authentication credentials for the target resource.
What causes a 401 Unauthorized?
A missing, expired, or invalid authentication token or API key.
How do I fix a 401 error?
Log in again or refresh your authentication token, and confirm it's included in the request (typically in the Authorization header).
Other 4xx Client Error codes
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